Swaging machine



June 19, 1934. FLYNN 1,963,942

SWAGING MACHINE Fileq July 20, 1933 Patented June 19, 1934 UNITED STATES PATENT OFFICE SWAGING MACHINE Application July 20, 1933, Serial No. 681,282

9 Claims.

My invention relates to that class of machines embodying a rotatable member carrying the swaging tools or hammers which move radially for action upon an article located between them, and an object of my invention, among others, is the equipment of a machine of this class with means for most effectively performing the operations required of it. I

A portion of a machine embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in the accompanying drawing in which- Figure l is a view in section through a portion of a turret and in central longitudinal section through a swaging device embodying my invention.

Figure 2 is an end view of the swaging device.

Figure 3 is a view in central longitudinal section through one end of the swaging device illustrating the hammers in action upon an article being swaged.

Figure 4 is an end view of the swaging device with the face plates removed and the hammers in their retracted positions.

Figure 5 is a similar view but showing the hammers in their swaging positions.

Figure 6 is a fragmental view on enlarged scale to illustrate the operation of the hammers which are shown in the same positions as in Fig. 4.

Figure 7 is a similar View but showing the hammers in the same relative positions as in Fig. 5.

My improved swaging device is not limited in its use but may be readily adapted for various swaging operations on articles of different kinds, the showing herein embodying a machine for forming hollow headed screws simply being a convenient means for disclosing the invention and one which I have found eminently practical. Such machine comprises a carrier or turret 8 of any ordinary and well-known construction and embodying collets 9 within which rods 10 of stock are carried and fed for operation of tools of various sorts in a manner that will be readily understood, one of such tools in the form of a cutting tool ll being partially shown together with a drill 12, a forming tool 13, and a cutting off tool 14, a further and more detailed description being omitted as not necessary to a full understanding of the invention.

A rod 10 is formed into a blank 15 which is shown as being operated upon by my improved swaging device which includes a driving gear 16 and which may be connected with any suitable source of driving power, said gear being secured to a swaging shaft 17 rotatably mounted in any suitable manner and having a driver 18 secured to its forward end as by means of a W oodruff key and a set screw. A swaging device is supported in any suitable manner in a bearing 19, the latter preferably comprising the upper part of a standard 20. A header case 21 has a neck 22 extending within and secured to the bearing 19, a bushing 23 within said neck supporting a shaft 24 projecting at one end within the driverlB and secured thereto as by means of a key and set screw. The opposite end of this shaft is enlarged, forming a hammer carrier 25 which has a groove 26 extending radially across its face and within which groove swaging hammers are mounted for radial sliding movement. There are preferably two of these hammers located on opposite sides of the axis of the head. Each hammer comprises two members, an inner swaging member 27 and an outer striker member 28. Each of the swaging members has a notch 29 at its inner end, this notch being preferably circular in shape and also tapering inwardly from a larger dimension at its outer end.

A chamber 30 is formed in the case 21, the hammer carrier 25 being located in this chamber. Hammer actuators 31, preferably in the form of rollers, are mounted within a carrier ring 32 having fingers 33 spaced apart to receive said actuators.

An annular plate 34 is secured to the edge of the case 21 to partially create the chamber 30, and a retaining plate 35 is secured to the carrier 25 to retain the hammers in place. An opening 36 in the retaining plate provides for the entrance of, the blank 15 at the end of a rod 10 of stock, the end of said blank being located in the notches 29 of the hammers for action of said hammers thereon.

The structure herein shown embodies a spring n I A material feature of my invention resides in the construction of the hammers whereby two blows are successively caused by each of the actuators 31, in the particular arrangement herein shown for accomplishing this purpose each of 7 the striker members 28 having two humps 38 with From this construction it will be noted that each striker successively receives two impacts from each of the hammer actuators 31, and the arrangement is such that the impacts of two adjacent actuators occur at the same time thereby'increasing the force by the double impacts, and thereby increasing the efiect of the blows of the swaging members 27 upon the article being swaged.

The hammers being constructed in two parts the swaging members 27 may be readily removed to permit substitution of other swaging members having notches for operating upon different sizes of stock or blanks, the retainingplate 35 being removable for this purpose.

While I have illustrated and described herein the humps 38 arranged to simultaneously receive the impact of the two adjacent actuators yet I contemplate other arrangements whereby different efiects may be secured.

In accordance with the provisions of the patent statutes I have described the principles of operation of my invention together with the device which I now consider to represent the best embodiment thereof; but I desire to have it understood that the device shown is only illustrative, and that the invention may be carried out by other means and applied to uses other than those above set out.

I claim:

1. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, a hammer supported for radial movement in said support, means for imparting said movement to said hammer, and a plurality of projections on said hammer for engagement by said means for imparting radial movement thereto.

2.'A swaging device including a rotatably mounted support having a cavity in the center I thereof to receive an article to be swaged, hammers oppositely disposed for radial movement in said support, means for imparting said movement to said hammers, and a plurality of projections on each hammer for engagement by said means for imparting radial movement thereto.

3. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, hammers supported for radial movement on said support, actuators carried by said support to actuate said hammers, and 'a plurality of projections on each hammer for engagement by said actuators for operation of said hammers.

4. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, hammers supported for radial movement in said support, a set of actuators arranged in a circle around said support for engagement with said hammers, and a plurality of projections on each of said hammers for engagement by said actuators to operate said hammers.

5. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, a hammer supported for radial movement in said support, means for imparting said movement to said hammer, and a plurality of projections on said hammer to simultaneously receive the impacts of adjacent means for imparting radial movement thereto.

6. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, a hammer supported for radial movement in said support, actuators for imparting said movement to said hammer, and a plurality of projections formed on the end of said hammer between the edges thereof to simultaneously receive the impact of adjacent actuators.

'7. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, a hammer supported for radial movement on said support, said hammer comprising a plurality of members one for action upon a device being swaged and another for action of an actuator, a plurality of humps formed on said hammer to receive the impact of said actuators, and means for imparting radial movement to said hammer.

8. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, a hammer supported for radial movement on said support, said hammer comprising a plurality of members one for action upon a device being swaged and another for action of an actuator, a plurality of humps upon the hammer member to receive the impact of said actuators, and actuators for operating said hammers.

9. A swaging device including a rotatably mounted support having a cavity to receive an article to be swaged, a hammer disposed for radial movement in said support and comprising a plurality of members, one to effect swaging action and another to receive the impact of actuators, a plurality of humps formed on said hammer to receive said impact, actuators for operating upon said hammer, and means for retaining the swaging member in place.

MICHAEL H. FLYNN. 

